Victorinox produced model no. 11 between the 1920s and the 1970s. It was a 3-part pocket knife with a cutting blade, saw and flute. Like all farmer's knives with such a flute blade for bloodletting, model no. 11 was only produced in 2 sizes: 106 mm and 100 mm. The flute blade was always made of rust-resistant steel from around the mid-1920s. Although there were later versions with carbon steel tools, this affected the large cutting blade and the saw respectively. Accableing to the 1964 catalogue, only model no. 11 was produced from this point on, with horn scales and tools made of stainless steel.
As with all peasant knives with a saw, this one changed the assembly position from the foot to the head rivet between 1920 and 1930. This also changed the fact that the saw no longer had to be opened from the back, but from the front. In contrast to the saw and the large cutting blade, the flute blade had no nail nicks. It was designed in such a way that the tip protruded a few millimeters beyond the base of the pocket knife, creating an overhang on which the tip of the fingernail could be used to open the flute blade.
Pocket knife No.11 had a large cutting blade, a saw, and a flute blade. There was an optional hanger for this model. Model No.10 was a 3-layer pocket knife.
Big cutting blade: 2.5 mm – 2.8 mm; Flute: 1.8mm ; Saw: 2.0mm
In model no. 11 all 3 tools were attached to the head rivet, only in the very original version the saw was still attached to the foot rivet. A center rivet attached the back springs.
Victorinox originally used black fiber scales as the material for this pocket knife, later also class I and II horn and red fiber instead of black fiber.
The rivets and liners were made of steel or brass, the jaws of steel or nickel silver, depending on the version. In the case of the high-quality, so-called "fine version", rivets and liners made of brass and jaws made of nickel silver were used, and rust-resistant steel was used for the tools, if this was already available.